What is source and sink ?
Source and sink refer to the direction of current flow between an I/O point on an I/O module and the connected device. It is only relevant for DC circuits with positive …
4 to 20 mA signal
Here you will learn all about 4 to 20 ma signal transmission.
4-20 mA Transmitter Wiring Types: 2-Wire, 3-Wire, 4-Wire
4-20 mA Transmitter Wiring 4-20 mA Transmitter Wiring Types: 2-Wire, 3-Wire, 4-Wire In this article, we’re going to take a close look at the 2-wire, 3-Wire and 4-wire transmitter and …
Fundamentals of 4-20 mA Current Loops
Fundamental of 4-20 mA Current Loops In process control, there are different types of infinite process inputs. Thermocouples and RTDs provide direct temperature reading while digital signals such as Modbus …
Why 4 to 20 mA used?
Following are the reasons Why 4 to 20 mA used?:- Current signals are often used in sensors because the current response is usually more linear than the voltage response. Current …